The Geology of the Upper Canada Mine

CIM Bulletin1963

D. W. TULLY

Sedimentary and volcanic rocks of the Timiskaming series trend westward across the property of the Upper Canada mine, forming part of the north limb of a regional syncline which is truncated on the south by the Larder Lake fault zone. A wide zone of schistosity strikes east-west through the sediments and volcanics. The central portion of this zone is occupied by a system of narrow gouge-filled fractures in highly altered rocks, mainly tuff, trachyte, trachyte porphyry and syenite porphyry.

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